Even the big Kahuna of crypto, Bitcoin, is an "obvious" pump and dump scheme on a daily basis. Simply buy teh high volume spike at a price low...and sell the high volume spikes at a price hig. Been going on for months now but either sheeple don't notice or they just don't care. :-)

http://bitcointicker.co

Bitcoin currently at 2505 and volume is spiking at 6:05 EST. Let's see if it isn't down $50 in teh next hour or so. Daytrading bitcoin would be so easy if it was only possible to do so. I wouldn't trust ANY of the exchanges to complete your transaction though. It might be a little easier now that volumes overall have dried up so dramatically.